Printing-press



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INVBNTOR B'Ymp-ZL ATTORNEYS l (No Model.)

h 2 Sheets-Sheet 2. Gr. P. PENNER. PRINTING PRESS.` No. 311,735. Patented Peb. 3, 1885.

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W ,1 1V Vkv I "1,1 I I WITNESSES INVENTOR. m 2: /earffjznne ATTORNEYS N: PETERS. PhmrLixhugmwnr. washmgmn. n4 cA IINrrEn drains ATENE OFFicE.

GEORGE P. FENNER, OF NEW LONDON, CONNECTICUT.

` PRINTme-PRi-:ss

SPECIFICATION forming part of Letters Patent No. 311,735, dated February 3, 1885.

Application filed March 20, 1854. (No model.)

To all whom t may concern:

Be it known that I, GEORGE P. FENNEE, a citizen of the United States, residing at New London, in the county of New London and State ot' Connecticut, have invented new and useful Improvements in Printing-Presses, ot' which the following is a specification.

rlhis invention relates to cylinder printingpresses; and it consists in the novel means here inatter described for regulating thernotion of the sliders connecting together the rollers which support the type'bed.

In the accompanying drawings, Flgure lis a longitudinal section ot' a portion ota press embodying my invention, the plane ot' section being indicated by the line x 0,.Fig. 2. Fig. 2 is a crosssection on the line y y, Fig. l. Fig. 3 shows a modification.

Similarlettexsindicate corresponding parts.

rIhe letter A designates the press-frame, constructed with atrack, B, on which travel the rollers C, supporting the type-bed D; and F denotes the sliders connecting the rollers together. Two sets of rollers are used, and two slidersto each set of rollers, as shown in Fig. 2, the sliders consisting of tlat bars in which the rollers are journaled at equal distances apart from each other.

The letter G indicates a bnr of cylindrical form, having two spiral grooves, c s, by one ot' which it engages a nut, I, on the type-hed, so that in the reciprocating motion ot' the bed a rotating motion is imparted to the har alternately in opposite directions by the action ot the nut.

tei'erring to Figsl and 2,the second groove, s, ofthe rotating bar G extends in an opposite direction to the groove e, and by its means the bar engages a nut, J. on the rollertrack B, while by an intermediatejournal, o, the bar engages a bearing, K, on the sliders F, so that in the rotatingmotion ofthe bar it also obtains a reciprocating motion from the nut ofthe track, and such motion being iinpartcd to the sliders through the journal bearing, the motion of the sliders, together with the rollers, is regulated by that means. The

spiral grooves e s correspond in pitch to each other, and their pitch is graduated to produce the required motion of the sliders.

In the modification represented in Fig. 3 the grooves e s of the rotating bar extend in the same direction,but with a diierent pitch, one the whole length of the bar and the other halt' the length thereof, and the nut J is on the sliders, it engaging with the groove of the greatest pitch, while the journalbearing K is ou the roller-track, so that the rod obtains a rotating motion from the nut I ot' the bed, but remains stationary endwise.

The action of the rotating bar G is on the sliders F of one set of rollers, whether by means of thejournal-bearing K, as in Figs. l and 2, or by means of the nut J, as in Fig. 3, and, to render the bar common to the sliders of both sets of rollers, the sliders are connected together by girders N or other suitable means, the girders, when such are used, eX- tending from the inner slider of each set of rollers, as shown in Fig. 2.

lWhat I claim as new, and desire to secure by-Letters Patent, is

l. The combination, substantially as hercinhefore described, with the type-bed, the bed-supporting rollers, the sliders connecting the rollers together, and the roller-track, of the nuts, the journal-bearing, and the rotating bar having two spiral grooves engaging the nuts, respectively, andajournal engaging the journal-bearing.

2. The combination, substantially as hereinbefore described, with the type-bed, the bedsupporting rollers, the sliders connecting the rollers together, and the roller-track, of the nuts on the bed and track, respectively, the journal-bearing on the sliders, and the rotating har having spiral grooves extending in opposite directions to engage the nuts, and a journal intermediate ot' the grooves to engage the journalvbearing.

In testimony whereof I have hereunto set my hand and seal in the presence ot' two subscribing witnesses.

GEORGE P. EENNER. [n s1 Witnesses:

CHARLES B. MAXsoN, GEORGE COLFAX. 

